ACID-BASE Balance & ABG Interpretation Flashcards
PH Range
7.35-7.45
Paco2range
35-45 mmHg
HCO3 range
22-26 mEq/L
PaO2 range
80-100 mmHg
SaO2 range
> 95%
Mild hypoxia
70-79 mmHg
Moderate hypoxia
60-69 mmHG
Severe hypoxemia
<60 mmHg
Compensation
Non/absent
If the value that does not match PH is normal then no compensation has taken place
Compensation partial
If the value that does not match pH is abnormal & pH is abnormal then partial compensation exist
Full compensation
If the value does not match the ph is abnormal but the PH is normal then full compensation has taken place
PH acid
Below 7.35
PH base
Over 7.45
PaCO2 base
Less than 35
PaCO2 acid
More than 45 mmHg
HCO3 acid
Less than 22 mEq/L
HCO3 base
Greater than 26 mEq/L
The perfect PH balance
7.40
How do the lungs compensate for acidosis
RR& depth will increase and CO2 will be blown off
H ions will be excreted and HCO3 will be retained
How do the lungs compensate for alkalosis
RR & depth will decrease
CO2 will be retained
H ions will be retained and HCO3- will be excreted
What regulates CO2(acid) levels within minutes
The lungs
What regulate HCO3- (base) levels?
Kidneys
Slower system takes hours to days